Products:gearbox,reducer,gear transmission,couplings,damages, gear unit,marine gearbox Management Certificate: ISO9001:2000 MB170 Marine Gearbox Description MB170 Marine Gearbox Model perform the duties of forward and reverse, engaging and disengaging, reduction, and take propeller thrust.The transsimission capacity is 0.030kw/rmp,the rations is 2.06:1 and 2.96:1. Ratio(i) 1.97 2.52 3.04 3.54 3. ...